Abstract: A heat exchanger assembly and method for making the assembly. The assembly includes a pair of plates having longitudinal grooves which are joined together with the grooves mating with each other to define fluid-carrying channels extending between the ends of the plates for receiving a heat exchange fluid. The plates include an engaging intermediate surface between certain channels and the fluid-carrying channel passages may be arranged in groups having a laterally spaced relationship from each other. Header means having orifices for connection to the fluid-carrying channels are at each end of the plates for providing a continuous closed path. The plates and channels are coiled to extend about and around one of the header means which provides a circular configuration. The grooves in one of the plates include bosses for providing self-spacing of adjacent convolutions of the channels and plates.
Abstract: A vegetation spraying assembly including a support framework mounted on the front of a tractor and movable vertically by hydraulic cylinders. A plurality of arms extend forwardly from the framework to distal ends supporting wedge-shaped guards with spraying nozzles supported rearwardly of the guards and aimed to spray rearwardly in a horizontal pattern. A plurality of collector trays are supported on the framework rearwardly of the spray nozzles. Each collector tray is an integral plastic member having end walls and a vertical back wall extending between the end walls. Each collector tray has a forwardly facing spray-receiving opening and a catch basin below the opening. A projection extends along and below the opening and is defined by first and second walls extending rearwardly from an apex for engaging and preventing vegetation from engaging the opening. A lip wall extends upwardly and forwardly from one of the walls defining the projection and defines the lower periphery of the opening.
Abstract: A pitot tube assembly for actuating a marine speedometer including an elongated blade member with the pitot tube passage therein and rotatably supported by an integral plastic bracket. The plastic bracket has two spaced support arms with a pin extending therebetween for rotatably supporting the blade member. A pair of spaced slots extend through the bracket between the two support arms to define an integral resilient spring section which is engaged by a cam surface on the blade member. The cam surface on the blade member includes a first flat portion which engages the resilient section to maintain the blade member in the down position and a second portion extending from an apex at the juncture with the first flat portion at an angle so that, when the apex engages the resilient section and passes over center, the second flat portion would engage the resilient section to maintain the blade member in the raised position.
Abstract: A needle chopper apparatus having a rotor with radially extending blades disposed in and along the longitudinal axis of a tube member. While rotating, the blades are in immediate proximity to an inner smooth cylindrical surface of the tube member. A feed chute extends into an inlet of the tube member where the blades react with the edge of the inlet to chop disposable items into particles. The particles go through an outlet in the tube member to a container that holds a disinfectant which is circulated to the feed chute and into the tube while the items are being chopped. One end of the tube is sealed by an annular plug and the other end extends from the top portion of a mounting panel. A housing is formed by an outer cabinet that is slid over an inner cabinet and coupled together by inwardly turned tabs on the outer cabinet. The mounting panel divides the housing into a front compartment and a back compartment.
Abstract: A heat exchanger assembly of the type having a heat transfer core element which includes a plurality of fins in parallel stacked relationship for defining heat transfer surfaces and a plurality of fluid carrying tubes extending transversely through the fins for defining a fluid circuit, the assembly including at least one tube-to-tube joint, the improvement comprising a solderless connection at the tube-to-tube joint wherein one of the tubes includes an end having an annular, outwardly extending shoulder followed by an inwardly tapered flared portion for receiving the outwardly tapered portion of the other portion and the other of the tubes including an end having an outwardly flared portion for receiving the outwardly tapered portion of the other tube end and an inwardly directed flange clinched over the shoulder of the other tube end to produce a solderless mechanical connection between the two tubes.
Abstract: A head gasket assembly disposed between a head having at least one combustion chamber therein and a cylinder block having at least one cylinder therein with the combustion chamber located at least partially outside the diameter of the cylinder and with the head including a chamber insert therein. The head gasket includes a metal core having resilient fiber on opposite surfaces thereof. A metal flange which is U-shaped in cross section engages the metal core about the cylinder opening and includes an integral extension on one side of the metal core for engaging the chamber insert so as to perfect the seal thereunder.
Abstract: An assembly and method for hot consolidating powder metal by heat and pressure in a container. The container is a mass of material substantially fully dense and incompressible with at least a portion which is capable of plastic flow at pressing temperatures and forming a closed cavity of a predetermined shape and volume for receiving a quantity of powder metal with the interior walls being movable to reduce the volume of the cavity for compacting powder metal into an article. A shaping insert is disposed in the cavity for defining a void in the article as the powder metal is compacted against the shaping insert. A force-responsive means allows relative movement between the shaping insert and at least a portion of the interior walls of the cavity as powder metal is compacted in response to a force reducing the volume of the cavity.
Abstract: A pallet system including two embodiments of a pallet having a deck including four sides and providing a load-supporting surface. A plurality of spaced hollow legs project from the opposite side of the deck and a plurality of hollow reinforcing ribs project from the opposite surface to define channels in the load-supporting surface. A hollow ridge projects from the opposite surface and extends along the sides at the periphery of the deck to define a groove in the load-supporting surface for receiving the bottom edge of a wall. There is at least one transverse rib projecting from the opposite surface and extending between opposite sides of the deck to define a transverse groove in the load-supporting surface for receiving the bottom edge of a transverse wall whereby walls may extend upwardly from the deck to divide and separate the load-supporting surface into discrete areas.
September 18, 1978
Date of Patent:
March 10, 1981
Oakland Plastics Corporation
James M. Cook, III, Dennis M. Foy, Lyle H. Shuert
Abstract: A cargo carrier for attachment to a body surface of a vehicle and comprising a base, a dome including side walls adapted to receive the base and having holes therein and at least one strap threadedly engaging one of the holes in one of the side walls and extending under the base and threadedly engaging one of the holes in the opposite of the side walls for securing the dome and base together. The strap includes two end portions having hooks thereon for adjustably securing the assembly to a body surface of the vehicle.
Abstract: This invention provides a method for cold extruding 18% nickel maraging steel to form an article of manufacture, such as a sub projectile blank for the manufacture of cannon rounds which includes performing a series of cold extrusion operations on an extrusion blank with a tapered punch to produce a combination forward extrusion and backward extrusion. On the first cold extrusion operation a tapered hole is formed in the extrusion blank and the extrusion blank is elongated. Subsequent cold extrusion operations progressively elongate both the extrusion blank and the tapered hole. The punch and die geometry are such that the tapered hole is elongated by penetration of the punch into the blank and additionally backward extrusion of the material around the punch. Additionally, as the tapered hole becomes increasingly longer, a floating punch is employed wherein at least a portion of the punch is supported by the walls of the tapered hole.
Abstract: A reflective heat transfer combination and the method of making same whereby a tacky mixture of tack wax and mineral spirits defines a carrier layer applied over a paper substrate capable of absorbing the carrier layer when melted in response to heat and disposing a layer of glass beads over the carrier layer and forcing the glass beads into the carrier layer and against the paper substrate while allowing portions of the beads to be exposed above the carrier layer. A liquid binder layer of acrylic plastic is disposed around the beads and over the carrier layer while leaving portions of the beads exposed and is dried to retain the beads in position. Thereafter a liquid reflective coat of acrylic plastic is applied over the binder layer and covering the beads to provide a reflective background for reflecting light back through the beads. While the reflective coat is liquid and before being dried, a powdered adhesive is disposed over the reflective coat and thereafter the reflective coat is dried.
July 25, 1979
Date of Patent:
February 3, 1981
Vincent S. Pernicano, Michael R. Wright
Abstract: An automotive body assembly including a flexible plastic component defining the front fascia portion of the body of an automotive vehicle. The front fascia has an exterior finished surface and interior hidden surface with retaining tabs integral with the fascia and extending from the fascia on the interior surface thereof for allowing a stiffening means defined by a wire-like rod to be snapped into position across the interior surface of the fascia for stiffening the fascia. The rod is flexible transversely to its longitudinal axis but is less flexible than the fascia.
Abstract: A brake shoe assembly and an apparatus and method for making same wherein the brake shoe includes a pair of spaced parallel arcuate ribs having outside radii secured to the underside of an arcuate plate with the inside radii of the arcuate ribs having a greater thickness than the outside radii. In accordance with the apparatus and method for making the brake shoe assembly, a straight length of rectangular bar stock having opposite faces is bent into an arcuate shaped member while maintaining the bar stock substantially flat with the opposite faces extending transversely to the axis of bending at a bending station. Subsequently, a plurality of holes are pierced between the opposite faces of the arcuate member at a piercing station.
Abstract: A rotary tool assembly including a support shaft with a circular mounting flange mounted on the end of the support shaft and extending radially therefrom to a circular periphery. The mounting flange has a recess in the front face which extends radially inwardly from the outer circular periphery of the mounting flange to an axially extending shoulder which has a machined surface. A circular cutting blade is disposed in the first recess and has front and rear surfaces with a circular central opening extending around and engaging the machined shoulder. A circular clamping ring is disposed in a second recess in the front face of the mounting flange with an outer circular periphery disposed in overlapping relationship with the inner circular periphery of the central opening in the cutting blade to clamp the cutting blade to the mounting plate.
Abstract: A motion transmitting remote control assembly of the type for transmitting motion in a curved path by a flexible motion transmitting core element and the method and assembly for making same. A sleeve has a second end with a male swivel portion having a partial convex spherical surface. The convex spherical surface extends from its intersection with the circular exterior of the sleeve to a lip defined by the intersection of the surface with the bore in the sleeve at the second end of the sleeve. The end fitting includes a female swivel portion having a partial concave spherical surface for receiving and supporting the male swivel portion whereby the sleeve may pivot in different directions from a neutral position. The concave surface has a first extremity engaging the convex surface and is spaced from the intersection of the convex surface and the exterior of the sleeve when the sleeve is in the neutral position.
Abstract: A mold assembly is disclosed for making a reinforcing panel structure including female and male molds with each mold having a base surface with four sided projections extending upwardly from the base surface to a raised surface. The projections of each mold are spaced from the next adjacent projection in that mold in a first direction a distance equal to the dimension of the projection in that direction plus a predetermined dimension which is double the thickness of the rib of the panel and with each projection spaced from the next adjacent projection in that mold in a second direction perpendicular to the first direction a distance equal to the dimension of the projection in that second direction plus a predetermined dimension which is double the thickness of the rib of the panel. Each of the projections have embossments thereon.
Abstract: An axle housing assembly including a cup-shaped center housing having flattened portions which are diametrically opposed from each other. Tubular housing members, each having an end face which is circular in cross section, are connected to the flattened portions of the cup-shaped center housing by a friction weld. The tubular housing members include a connecting portion extending axially from the end face, a first frustroconical portion interconnecting an intermediate portion to the connecting portion and a second frustroconical portion extends axially from the intermediate portion. The cross-sectional area of the connecting portion is thicker than the first frustroconical portion which gradually decreases in thickness toward the intermediate portion. The cup-shaped center housing defines a cavity having an opening thereto and includes a flange portion extending inwardly about the periphery of the opening and a cover plate is mounted on the inwardly extending flange portion.
Abstract: A method for sonic testing powder metal articles made by hot isostatic pressing in a thick-walled container including the steps of preparing the composite thick-walled container and article for sonic testing by machining sonic surfaces in the exterior surface of the thick-walled container and thereafter sonic testing the article through the walls of the container.
Abstract: A radiator tank headsheet including an integral ferrule around an elongated tube-receiving opening and method for forming the same wherein the method includes the steps of forming an elongated depression in the sheet material having generally parallel sidewalls, endwalls joining the sidewalls, and a bottomwall, forming a pair of holes in the depression by removing a slug of sheet material from the bottomwall adjacent each of the endwalls, splitting the bottomwall generally along its centerline between the holes to form two bottomwall segments, and forcing the two segments outwardly and into coplanar relationship with the sidewalls of the depression to form an elongated opening including an integral ferrule having generally parallel, relatively high sidewalls and endwalls of lesser height joining the sidewalls.
Abstract: A thermal energy scavenger assembly including a plurality of temperature-sensitive wires made of material which exhibits shape memory due to a thermoelastic, martensitic phase transformation. The wires are placed in tension between fixed and movable plates which are, in turn, supported by a pair of wheels which are rotatably supported by a housing for rotation about a central axis. A pair of upper and lower cams are fixed to the housing and cam followers react with the respective cams. Each cam transmits forces through a pair of hydraulic pistons. One of the pistons is connected to a movable plate to which one end of the wires are connected whereby a stress is applied to the wires to strain the wires during a first phase and whereby the cam responds to the unstraining of the wires during a second phase.
June 9, 1978
Date of Patent:
November 4, 1980
William L. Pringle, Peter A. Hochstein, Harold W. Milton, Jr.